CN2287056Y - Automatic vertical centrifuger for filtering flat strips - Google Patents
Automatic vertical centrifuger for filtering flat strips Download PDFInfo
- Publication number
- CN2287056Y CN2287056Y CN 96232349 CN96232349U CN2287056Y CN 2287056 Y CN2287056 Y CN 2287056Y CN 96232349 CN96232349 CN 96232349 CN 96232349 U CN96232349 U CN 96232349U CN 2287056 Y CN2287056 Y CN 2287056Y
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- rotary drum
- centrifuge
- spiral scraper
- speed
- filtrate
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Abstract
The utility model relates to a centrifuger of a vertical full-automatic flat-bar filter type, which is used for the continuous and automatic full-speed separation of solid and liquid of suspension liquid with crystallized fine particles and non-compression fine particles (the diameters of the fine particles are smaller than 0.03 m m to 0.05 m m) or short fiber. The centrifuger uses a single machine to drive two pairs of gears as a differential device so as to decrease the axial dimension and extend the filtering time of filtering materials, so the full dehydration can be achieved, and a novel flat-bar filter net, a forced air circulation device and a V-shaped and an X-shaped rotary drums are arranged to ensure high efficiency and low consumption. The utility model has the advantages of compact structure and simple process, develops wide prospect for studying the vertical series of spiral discharging centrifugers, and is suitable for the departments of chemical industry, foods, light industry, medicine, environmental protection, etc., particularly the use of automatic producing lines.
Description
The utility model relates to a kind of centrifuge that is used for the Separation of Solid and Liquid of suspension, especially vertical (containing 3-foot) centrifuge, screw unloading formula (sedimentation, filtration) centrifuge.
Centrifuge is divided into the intermittent running centrifuge and centrifuge two classes that turn round continuously by its mode of production.The former typical case is represented as 3-foot upper unloading centrifuge (SS type) and centrifuge with cutter discharge of solid (SG type, WG type); The latter mainly contains pistons discharge formula (WH type), centrifugal discharge formula (LI type) and screw unloading formula (WL type) etc.
Helical-conveyer centrifugal is little from the nineteen fifty structural change so far of coming out.It is to utilize the spiral scraper conveying filtrate (slag) that certain speed discrepancy is arranged with the rotary drum of rotation, carries out sedimentation or filter operation simultaneously.Both at home and abroad all based on horizontal, formed series basically at present.Though vertical type has advantages such as floor space is little, construction cost is few with respect to horizontal type, because of its axial dimension is too big, it is this small dimension of LLC/G-350 of 350mm that roller diameter is still only arranged so far.
The approach that raising screw unloading (sedimentation, filtration) centrifuge takes off the liquid effect has two: one, to high speed and large-scale development (promptly improving its separation factor); The 2nd, prolong and take off the liquid time.For filtering centrifuge, also should have the filter screen (cloth) of function admirable in addition.
Make a general survey of the development of domestic helical-conveyer centrifugal, but have difficulty in taking a step along first approach at present.Faster rotational speed, energy consumption almost are cube speed and rise; Strengthening roller diameter then causes cost to increase suddenly because of the corresponding increase of rotary drum length strengthens technology difficulty.High separation factor often is subjected to the restriction of the rotary drum strength of materials, and at present domesticly is difficult to also that cheapness provides, also cannot say for sure to demonstrate,prove the rotary drum material of high strength on the technology, so often sight line is forwarded to second approach.
Increase rotary drum length and can prolong taking off the liquid time of filtrate (slag) undoubtedly.In theory, taking off the liquid time is directly proportional with the rotary drum effective length.Spiral type rotary drum draw ratio L/d is 1.3～3.5 both at home and abroad, and shows a rising trend, and reaches 3.8 as the U.S., and West Germany reaches 4.0.But L/d is bigger, more cannot say for sure to demonstrate,prove the accuracy of manufacture and the assembly precision of centrifuge, and centrifuge cost and all risings at double of floor space, so lift also non-very wise move.
When rotary drum was fixed length, the speed discrepancy of rotary drum and spiral scraper was more little, and it is long more that then filtrate (slag) moves (the taking off liquid) time in rotary drum.The speed discrepancy of existing helical-conveyer centrifugal is all realized by means of cycloidal-pin wheel or planetary transmission.This class speed changer accuracy of manufacture requires high, and high-power closed circulation meshing wear is big, can not run well for a long time.This speed discrepancy is generally 0.5～4.0% of rotary drum rotating speed, so cause L/d much larger than 1; And the axial dimension of decelerator itself is also very big.To sum up, too high center of gravity, excessive axial dimension makes the development work of vertical helical type in a dilemma.
In screw unloading filter centrifugal machine, because existing strip, the slit＞0.2～0.3mm of tabular filter screen, the slit of electroforming net (its price is extremely expensive) is 0.08～0.10mm, cause particle in the solid phase to pass the slit in a large number and enter liquid phase, filter quality is too poor, is only applicable to contain the suspension of bulky grain solid phase.Though filter cloth, braid fabric can be done carefullyyer rather widely and use, but because of netting supporting could the use with lining, so filter and just generated " fixedly filter cake " beginning, " fixedly filter cake " then is a well known fact and a pendent difficult problem because of closely increasing filtration resistance continuously greatly, perplexing whole Separation of Solid and Liquid process.
The purpose of this utility model is that a kind of full-automatic this new machine of flat filtration vertical (containing 3-foot) centrifuge will be provided: novel flat the filter screen that it adopts not only can dwindle the slit (≤0.03～0.05mm) of filter screen greatly, enlarge the scope of separated material, the influence of " fixedly filter cake " be can thoroughly eliminate again, the disintegrate-quality and the rate of filtration improved; It can separate at full speed continuously automatically, and nationality is to reduce labor intensity, to raise labour productivity; It can greatly delay filtrate (slag) speed of service in rotary drum, and nationality improves separating effect still can prolong the taking off the liquid time of filtrate (slag) under the prerequisite that shortens the bowl axial dimension significantly; It can be little with its floor space, efficient low-consume, price make suitable, make safeguard simple, and can be the research and development of screw unloading (sedimentation, filtration) the vertical series of centrifuge especially with the axial dimension that has reduced greatly, open up very wide prospect, fill up domestic and international blank.
The utility model is existing realizes above-mentioned purpose by following scheme:
The vertical arrangement of centrifuge, unit drives, the top charging, the spiral scraper feeding utilizes flat strainer filtering, and the tangential fluid of sidepiece, deslagging are realized separating automatically continuously at full speed.The spiral scraper spindle nose is drilled with the T-shape charging hole; Rotary drum is " V " shape back taper type or " X " shape back cone type; Be provided with the radially feed pipe of symmetry in the spiral scraper device for discharging; Spiral scraper with respect to the speed discrepancy of rotary drum less than 0.5% of rotary drum rotating speed; The afterbody place of rotary drum main shaft and spiral scraper main shaft is provided with two gears, respectively with two gears engaged of starting system, forms the novel simple differential mechanism; This differential mechanism can select for use the gear of the different numbers of teeth to obtain different speed discrepancies.
The centrifuge body is made up of upper machine body, lower body two parts, and the cavity that assembling back two bodies form is built-in with starting system and cooling and lubricating device.
The draw ratio L/d of bowl≤1; The rotary drum axis of centrifuge is vertically settled, and centrifuge is placed on the tripodia elastic support or on the rigid support.
The bowl components interior is equipped with the forced-air circulation blow-dry device that the plurality of fans blade is formed; All have corresponding blast orifice on rotary drum parts and the spiral scraper device for discharging; Have the inlet scoop on the upper machine body; During operation, the peripheral depression that forms of rotary drum, the filter material layer inner ring in the rotary drum forms the high-pressure area.
The centrifuge filter screen is a flat filter screen being close to the solid matter of rotary drum perforate cylinder inwall and rotary drum perforate end face inwall.
The rotary drum parts tail end of centrifuge has some radial holes, and is equipped with radially scum board in the aperture; Organism sidewall has the tangential slag releasing channel completely isolated with filtrate, and filter residue tangentially flies out along the sidepiece of centrifuge.
1, on link-suspended basket centrifuge SS type shell (3) (see accompanying drawing---down with), adds charging hopper (7), feed pipe (6), in rotary drum parts (5), add with it and exist the spiral scraper device for discharging (4) of small speed discrepancy to transport filtrate (slag) with charging.The radially scum board that installs some symmetries in rotary drum parts bottom additional is scraped to the tangential slag notch of upper machine body (2) sidewall by filter residue and outside the discharge machine, filtrate is then dropped down to the upper machine body collecting tank and along liquid outlet along shell and discharged.Slag, liquid are taken their own roads, thereby have realized separating automatically continuously at full speed on the 3-foot type.
2, realize that the differential gearshift mechanism of spiral scraper device for discharging and the small speed discrepancy of rotary drum parts is mounted in two pairs of interior gears of cavity of upper machine body, lower body (1) formation.Change this group gear parameter and can obtain different speed discrepancies, make filtrate that different taking off the liquid time be arranged, to adapt to different filtrates.This mechanism structure is simple, technology is easily gone, and holds concurrently with oil pump oil jet lubrication, cooling, thereby has abandoned the planetary reducer and the cycloidal-pin wheel decelerator of complex structure, heaviness, costliness, difficulty in process, and under normal circumstances, gear life was not less than 25000 hours.
3, above-mentioned speed discrepancy only is 0.034-0.22%, compares with the speed discrepancy 0.5-4.0% of the described existing helical-conveyer centrifugal of document, and filtrate (slag) has on average prolonged 59 times running time in rotary drum.Like this, can make this machine rotary drum greatly reduce still can make under the situation of (this machine L/d=0.65) the actual liquid time average that takes off of filtrate (slag) to prolong 13.8 times than the average axial dimension of existing rotary drum at axial dimension, improve greatly and taken off the liquid effect.
4, drum inner wall and rotary drum upper surface are all installed novel flat filter screen and are replaced traditional tabular, strip filter screen or filter cloth, woven wire, adopting appropriate parameters can make the slit value of flat filter screen only is 0.03-0.05mm, and the thickness of " fixedly filter cake " almost can ignore (≤0.007mm).Like this, not only enlarged this range of application, and improved filter quality greatly and taken off liquid efficient filtrate.
5, install forced-air circulation blow-dry device (among the figure draw) additional in the rotary drum parts, make the peripheral depression that forms of rotary drum, what help reducing rotary drum takes off the liquid resistance; Face filtrate (slag) layer inner ring forms the high-pressure area, increased the motive force when taking off liquid.During the centrifuge operation, this cycle of higher pressure air also helps by filtrate (slag) layer by force it is further dried up.
6, rotary drum makes back taper type of " V " shape or the back cone type of " X " shape.Especially the latter, its part has been strengthened it and has been taken off the liquid function for taking off the liquid zone; Another part is a dry section, further takes off under the prerequisite of liquid in assurance, reduces its discharging (slag) resistance, helps energy-conservation.
7, the rotary drum that has shortened greatly reduces the filtrate (slag) and the friction area of filter screen, spiral scraper; The friction of filtrate (slag) and flat filter screen shiny surface has replaced the friction with very coarse " fixedly filter cake " (account for rotary drum area about 15%) again; The rotary part that has alleviated deadweight all can make the power of this centrifuge reduce significantly.
8, the low-frequency vibration rate that caused by speed discrepancy of this centrifuge only is 0.51-3.24/min, thus the low-frequency resonance of ground when thoroughly having avoided the centrifuge operation.The tripodia elastic support (13) that this machine adopts can absorb body vibration, makes running more become steady.
Accompanying drawing is a scheme of erection of the present utility model.Among the figure, each sequence number is represented respectively: (1) lower body; (2) upper machine body; (3) shell; (4) spiral scraper device for discharging; (5) rotary drum parts; (6) feed pipe; (7) hopper; (8) spiral scraper main shaft; (9) rotary drum base; (10) rotary drum main shaft; (11) motor and belt wheel; (12) starting system; (13) tripodia elastic support.
Below in conjunction with accompanying drawing, the utility model operation principle is described further.
After the filtrate that desire is separated enters hopper (7), be drawn in spiral scraper main shaft (8) hole of rotation at a high speed by negative pressure of vacuum along vertical pipeline.Vertical the communicating of feed pipe (6) of this spindle hole and spiral scraper device for discharging (4).Under centrifugal action, filtrate arrives at the inwall of rotary drum parts (5) and end face and rotation at a high speed, while centrifugal force forces the liquid in the filtrate constantly to be separated from filtrate (slag) by flat filter screen becomes filtrate, and being thrown to shell (3) inwall drops down, be gathered in the collecting tank of upper machine body (2), drawn outside the machine through outage (not drawing among the figure) again.
The spiral scraper main shaft is coaxial empty cover with the rotary drum main shaft (10) of rotary drum parts, they drive the spiral scraper device for discharging respectively and the rotary drum parts rotate at a high speed with atomic little speed discrepancy, thereby force filtrate (slag) to roll lentamente continuously when taking off liquid and move along drum inner wall, filtrate is then constantly separated along with filtrate and is become filter residue.
Rotary drum parts inner chamber is equipped with the forced-air circulation device of the fan blade composition of some symmetries.Rotary drum base (9) upward and on the spiral scraper device for discharging all has the air blast hole.During operation, the air of rotary drum periphery is inhaled into rotary drum base intracavity (meanwhile, the air layer of rotary drum periphery forms depression), delivers to filtrate (slag) layer inner ring after this device pressurization, plays and promotes and dry up effect.
Filter residue runs to rotary drum parts bottom after the radial hole of rotary drum base is scraped commentaries on classics by scum board along the upper machine body inner ring after flying out, and tangentially goes out outside the machine along the sidepiece of centrifuge through the tangential passage of upper machine body thereafter.This tangential passage of cause and collecting tank crossings on different level separate, thereby have realized slag, the discharge of liquid shunting.
The upper machine body of this centrifuge, lower body form cavity between (1), and starting system (12) and lubricating and cooling system (not shown) are installed.This centrifuge unit drives, and starts with the protection motor by the friction launch device.Face braking then drives cam by vertical control stick and drives shifting block, makes brake hoop hold starting system tightly and realizes (not drawing among the figure).
This centrifuge adopts the tripodia elastic support to support, and nationality operates steadily to alleviate vibration, to make.
Claims (6)
1, a kind of centrifuge, vertical arrangement, unit drives, the top charging, the spiral scraper feeding utilizes flat strainer filtering, and the tangential fluid of sidepiece, deslagging are realized separating automatically continuously at full speed.The spiral scraper spindle nose that is characterised in that of the present utility model is drilled with the T-shape charging hole: rotary drum is " V " shape back taper type or " X " shape back cone type; Be provided with the radially feed pipe of symmetry in the spiral scraper device for discharging; Spiral scraper with respect to the speed discrepancy of rotary drum less than 0.5% of rotary drum rotating speed; The afterbody place of rotary drum main shaft and spiral scraper main shaft is provided with two gears, respectively with two gears engaged of starting system, forms the novel simple differential mechanism; Be that this differential mechanism can select for use the gear of the different numbers of teeth to obtain different speed discrepancies.
2, centrifuge according to claim 1 is characterized in that the centrifuge body is made up of upper machine body, lower body two parts, and the cavity that assembling back two bodies form is built-in with starting system and cooling and lubricating device.
3, centrifuge according to claim 1 is characterized in that draw ratio L/d≤1 of rotary drum; The rotary drum axis that is centrifuge is vertically settled, and is that centrifuge is placed on the tripodia elastic support or on the rigid support.
4, centrifuge according to claim 1 is characterized in that its rotary drum components interior is equipped with the forced-air circulation blow-dry device that the plurality of fans blade is formed; Be all to have corresponding blast orifice on rotary drum parts and the spiral scraper device for discharging; Be to have on the upper machine body inlet scoop; When being to move, the peripheral depression that forms of rotary drum, the filter material layer inner ring in the rotary drum forms the high-pressure area.
5, centrifuge according to claim 1 is characterized in that filter screen is a flat filter screen being close to the solid matter of rotary drum perforate cylinder inwall and rotary drum perforate end face inwall.
6, centrifuge according to claim 1 is characterized in that the rotary drum parts tail end of centrifuge has some radial holes, and is equipped with radially scum board in the aperture; Be that organism sidewall has the tangential slag releasing channel completely isolated with filtrate, filter residue tangentially flies out along the sidepiece of centrifuge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96232349 CN2287056Y (en) | 1996-07-16 | 1996-07-16 | Automatic vertical centrifuger for filtering flat strips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96232349 CN2287056Y (en) | 1996-07-16 | 1996-07-16 | Automatic vertical centrifuger for filtering flat strips |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2287056Y true CN2287056Y (en) | 1998-08-05 |
Family
ID=33909323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96232349 Expired - Fee Related CN2287056Y (en) | 1996-07-16 | 1996-07-16 | Automatic vertical centrifuger for filtering flat strips |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2287056Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101879386B (en) * | 2009-05-06 | 2013-03-06 | 富葵精密组件(深圳)有限公司 | Membrane slag filter |
| CN103949355A (en) * | 2014-05-06 | 2014-07-30 | 杨元清 | Three-foot type manual material-discharging centrifugal machine |
| CN104646191A (en) * | 2013-11-25 | 2015-05-27 | 邱玉冬 | Efficient sedimentation centrifuge |
| CN105214854A (en) * | 2015-11-02 | 2016-01-06 | 迈安德集团有限公司 | A kind of micro-size fraction dry-discharge system for tailings and tailing dry-type emission technology |
| CN105214833A (en) * | 2015-11-02 | 2016-01-06 | 迈安德集团有限公司 | A kind of cyclone overflow pulp hierarchy system and ore pulp grading technology |
| CN105233973A (en) * | 2015-11-02 | 2016-01-13 | 迈安德集团有限公司 | Graded desliming system and process for mica |
| CN105234007A (en) * | 2015-11-02 | 2016-01-13 | 迈安德集团有限公司 | High-speed disk type dewatering machine |
| CN105521874A (en) * | 2015-12-09 | 2016-04-27 | 丽水市天宁电机有限公司 | Food residue and water separating unit and method |
| CN109046808A (en) * | 2018-10-11 | 2018-12-21 | 张家港市蓝鸟机械有限公司 | A kind of vertical scraper centrifugal machine charging processing unit |
-
1996
- 1996-07-16 CN CN 96232349 patent/CN2287056Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101879386B (en) * | 2009-05-06 | 2013-03-06 | 富葵精密组件(深圳)有限公司 | Membrane slag filter |
| CN104646191A (en) * | 2013-11-25 | 2015-05-27 | 邱玉冬 | Efficient sedimentation centrifuge |
| CN103949355A (en) * | 2014-05-06 | 2014-07-30 | 杨元清 | Three-foot type manual material-discharging centrifugal machine |
| CN105234007A (en) * | 2015-11-02 | 2016-01-13 | 迈安德集团有限公司 | High-speed disk type dewatering machine |
| CN105214833A (en) * | 2015-11-02 | 2016-01-06 | 迈安德集团有限公司 | A kind of cyclone overflow pulp hierarchy system and ore pulp grading technology |
| CN105233973A (en) * | 2015-11-02 | 2016-01-13 | 迈安德集团有限公司 | Graded desliming system and process for mica |
| CN105214854A (en) * | 2015-11-02 | 2016-01-06 | 迈安德集团有限公司 | A kind of micro-size fraction dry-discharge system for tailings and tailing dry-type emission technology |
| CN105214854B (en) * | 2015-11-02 | 2017-08-08 | 迈安德集团有限公司 | A kind of micro-size fraction dry-discharge system for tailings and tailing dry-type emission technology |
| CN105214833B (en) * | 2015-11-02 | 2017-08-08 | 迈安德集团有限公司 | A kind of cyclone overflow pulp hierarchy system and ore pulp grading technology |
| CN105234007B (en) * | 2015-11-02 | 2017-10-17 | 迈安德集团有限公司 | A kind of high speed disc dewaterer |
| CN105521874A (en) * | 2015-12-09 | 2016-04-27 | 丽水市天宁电机有限公司 | Food residue and water separating unit and method |
| CN109046808A (en) * | 2018-10-11 | 2018-12-21 | 张家港市蓝鸟机械有限公司 | A kind of vertical scraper centrifugal machine charging processing unit |
| CN109046808B (en) * | 2018-10-11 | 2023-12-19 | 江苏蓝鸟离心机制造有限公司 | Vertical scraper centrifuge feeding processing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |